Prince William and Kate Middleton
The birth certificate of Prince William and Kate Middleton's newborn, Prince Louis, is typewritten for a reason. Pictured: Prince William and Middleton depart the Lindo Wing with their new born son Prince Louis of Cambridge at St Mary's Hospital on April 23, 2018 in London. Getty Images/Chris Jackson

Prince William and Middleton have shared a snap of Prince Louis' birth certificate.

Daily Mail published a copy of Prince Louis' birth certificate that was signed by Prince William and current Westminster registrar Patricia Gordon. It confirms that the youngest royal's full name is His Royal Highness Prince Louis Arthur Charles of Cambridge.

"It has been a great honour to register, and formally welcome the latest addition to the Royal Family, Prince Louis Arthur Charles," Gordon said. "This follows a long history of Westminster City Council registering royal births, including Prince Louis' siblings Prince George and Princess Charlotte."

Prince George's and Princess Charlotte's documents were handwritten, so there could be a specific reason why Prince Louis' was typewritten. It may have something to do with a former registrar, who said she was slammed for her messy handwriting in the two older royal children's certificates and even received death threats over it.

"I got death threats. One person said their cat had better handwriting, someone called for me to be fired and someone even said I was illiterate," Alison Cathcart said in 2014. "Let's just say I had to have more than one attempt. What can I say? It was a very hot day and I was flustered and trying to fill this thing in with Prince William sitting beside me."

In related news, lifestyle reporter for Daily Express Francesca Specter noticed that Middleton's name was written in a different format: Catherine Elizabeth Her Royal Highness Duchess of Cambridge. The Duchess opted to use her Christian name before mentioning her royal status. Specter speculated that this could reflect her commoner status as she does not have a hereditary title.

Middleton's name was written in the same format in Prince George's and Princess Charlotte's documents as well. Specter said she thinks it's not a coincidence and that the mother-of-three is making a distinction between her, her husband and their children this way.

In other news, Middleton may not bring Prince Louis to Prince Harry and Meghan Markle's royal wedding. According to a royal expert, this is to ensure that the attention will be focused on the bride and groom and not on the newborn.

"They certainly won't bring the baby to the wedding, this will ensure that the focus is on Harry and Meghan as of course it should be," royal commentator Richard Fitzwilliams said.

Meanwhile, Dr. Robin Jacobson also thinks the same, but for a different reason. He explained that newborns can go out in public even on the day they were born, but it's preferable that they don't do this within the first two months to prevent the child from getting sick.